rs3729992

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000257.4(MYH7):​c.-8-25G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0717 in 1,610,064 control chromosomes in the GnomAD database, including 4,416 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.063 ( 366 hom., cov: 33)
Exomes 𝑓: 0.073 ( 4050 hom. )

Consequence

MYH7
NM_000257.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.792
Variant links:
Genes affected
MYH7 (HGNC:7577): (myosin heavy chain 7) Muscle myosin is a hexameric protein containing 2 heavy chain subunits, 2 alkali light chain subunits, and 2 regulatory light chain subunits. This gene encodes the beta (or slow) heavy chain subunit of cardiac myosin. It is expressed predominantly in normal human ventricle. It is also expressed in skeletal muscle tissues rich in slow-twitch type I muscle fibers. Changes in the relative abundance of this protein and the alpha (or fast) heavy subunit of cardiac myosin correlate with the contractile velocity of cardiac muscle. Its expression is also altered during thyroid hormone depletion and hemodynamic overloading. Mutations in this gene are associated with familial hypertrophic cardiomyopathy, myosin storage myopathy, dilated cardiomyopathy, and Laing distal myopathy. [provided by RefSeq, May 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 14-23433765-C-A is Benign according to our data. Variant chr14-23433765-C-A is described in ClinVar as [Benign]. Clinvar id is 1174731.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-23433765-C-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0908 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYH7NM_000257.4 linkuse as main transcriptc.-8-25G>T intron_variant ENST00000355349.4 NP_000248.2
MYH7NM_001407004.1 linkuse as main transcriptc.-8-25G>T intron_variant NP_001393933.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYH7ENST00000355349.4 linkuse as main transcriptc.-8-25G>T intron_variant 1 NM_000257.4 ENSP00000347507 P1

Frequencies

GnomAD3 genomes
AF:
0.0627
AC:
9547
AN:
152210
Hom.:
367
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0283
Gnomad AMI
AF:
0.251
Gnomad AMR
AF:
0.0748
Gnomad ASJ
AF:
0.104
Gnomad EAS
AF:
0.0571
Gnomad SAS
AF:
0.0981
Gnomad FIN
AF:
0.0523
Gnomad MID
AF:
0.0886
Gnomad NFE
AF:
0.0755
Gnomad OTH
AF:
0.0717
GnomAD3 exomes
AF:
0.0699
AC:
17341
AN:
248174
Hom.:
716
AF XY:
0.0736
AC XY:
9896
AN XY:
134414
show subpopulations
Gnomad AFR exome
AF:
0.0246
Gnomad AMR exome
AF:
0.0448
Gnomad ASJ exome
AF:
0.113
Gnomad EAS exome
AF:
0.0563
Gnomad SAS exome
AF:
0.0991
Gnomad FIN exome
AF:
0.0558
Gnomad NFE exome
AF:
0.0766
Gnomad OTH exome
AF:
0.0804
GnomAD4 exome
AF:
0.0727
AC:
105968
AN:
1457736
Hom.:
4050
Cov.:
33
AF XY:
0.0740
AC XY:
53669
AN XY:
725392
show subpopulations
Gnomad4 AFR exome
AF:
0.0239
Gnomad4 AMR exome
AF:
0.0478
Gnomad4 ASJ exome
AF:
0.111
Gnomad4 EAS exome
AF:
0.0379
Gnomad4 SAS exome
AF:
0.0982
Gnomad4 FIN exome
AF:
0.0584
Gnomad4 NFE exome
AF:
0.0741
Gnomad4 OTH exome
AF:
0.0728
GnomAD4 genome
AF:
0.0626
AC:
9541
AN:
152328
Hom.:
366
Cov.:
33
AF XY:
0.0618
AC XY:
4602
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0282
Gnomad4 AMR
AF:
0.0747
Gnomad4 ASJ
AF:
0.104
Gnomad4 EAS
AF:
0.0574
Gnomad4 SAS
AF:
0.0981
Gnomad4 FIN
AF:
0.0523
Gnomad4 NFE
AF:
0.0755
Gnomad4 OTH
AF:
0.0705
Alfa
AF:
0.0722
Hom.:
438
Bravo
AF:
0.0603
Asia WGS
AF:
0.0730
AC:
254
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
5.7
DANN
Benign
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs3729992; hg19: chr14-23902974; API